首次提交，可运行。但有两问题：1.画质不佳, 2.无音频

RGBAFrameRecviver.cpp

@@ -0,0 +1,35 @@
+#include"FrameRecviver.h"
+#include<iostream>
+
+extern "C"
+{
+    #include<libavutil/pixdesc.h>
+}
+
+bool RGBAFrameRecviver::OnFrame(const AVFrame *frame)
+{
+    if(src_format==AV_PIX_FMT_NONE)
+    {
+        width=frame->width;
+        height=frame->height;
+
+        src_format=AVPixelFormat(frame->format);
+
+        std::cout<<"size: "<<width<<"x"<<height<<std::endl
+                 <<"format: "<<av_get_pix_fmt_name(src_format)<<std::endl;
+
+        if(src_format!=AV_PIX_FMT_RGBA)
+            convert=InitFrameConvert(AV_PIX_FMT_RGBA,src_format,width,height);
+    }
+
+    if(src_format==AV_PIX_FMT_RGBA)
+    {
+        return OnFrameRGBA((uint8 *)(frame->data[0]));
+    }
+    else
+    {
+        convert->Convert(frame->data,frame->linesize);
+
+        return OnFrameRGBA(convert->GetData(0));
+    }
+}